/*
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is MPEG4IP.
 *
 * The Initial Developer of the Original Code is Cisco Systems Inc.
 * Portions created by Cisco Systems Inc. are
 * Copyright (C) Cisco Systems Inc. 2001.  All Rights Reserved.
 *
 * Contributor(s):
 *      Dave Mackie     dmackie@cisco.com
 */

#include "src/impl.h"

namespace mp4v2
{
    namespace impl
    {

        ///////////////////////////////////////////////////////////////////////////////

        MP4SdpAtom::MP4SdpAtom(MP4File &file) : MP4Atom(file, "sdp ")
        {
            AddProperty(
                new MP4StringProperty(*this, "sdpText"));
        }

        void MP4SdpAtom::Read()
        {
            // read sdp string, length is implicit in size of atom
            uint64_t size = GetEnd() - m_File.GetPosition();
            char *data = (char *)MP4Malloc(size + 1);
            ASSERT(data != NULL);
            m_File.ReadBytes((uint8_t *)data, size);
            data[size] = '\0';
            ((MP4StringProperty *)m_pProperties[0])->SetValue(data);
            MP4Free(data);
        }

        void MP4SdpAtom::Write()
        {
            // since length of string is implicit in size of atom
            // we need to handle this specially, and not write the terminating \0
            MP4StringProperty *pSdp = (MP4StringProperty *)m_pProperties[0];
            const char *sdpText = pSdp->GetValue();
            if (sdpText)
            {
                pSdp->SetFixedLength((uint32_t)strlen(sdpText));
            }
            MP4Atom::Write();
            pSdp->SetFixedLength(0);
        }

        ///////////////////////////////////////////////////////////////////////////////

    }
} // namespace mp4v2::impl
